Hair Restoration Process

Hair Restoration Process

Hair is a dead Keratinous filament emerging from the skin. Strands of hair emerge from an epidermic penetration of the skin called the hair follicle. The hair root lies deep within the skin at the hair bulb and is composed of collagen-rich connective tissue, blood vessels and nerve endings. The hair shaft reaches out onto the skin by means of a process called the papilla. The hair strand then rolls itself over to the opposite direction and the hair shaft falls off into the fallopian tube.

The thickness of hair is directly related to the density of keratin present in hair. As hair grows it thickens and becomes longer and thicker until it eventually reaches the hair bulb. The shaft then turns towards the side of its growth and the cuticle is exposed. This exposes the two layers of skin - the outer layer of the skin called the stratum corneum, and the inner layer of the epidermis called stratumbasale. Hair grows in a linear fashion from the scalp (stratum corneum) to the hair bulb. There are three processes that take place during hair growth - hair shaft breaks off into a number of sections, new hair grows from these broken strands, and new hair grows in its place.

During the early development of hair the hair shaft lies entirely inside the follicle and the hair bulb. Hair does not grow until the follicle reaches a point where new hairs can push it upwards into the dermal layers. Hair growth is stimulated by chemical signals sent by the follicles to the hair shaft and by cells on the outer surface of the skin. These signals include nitric oxide (NO), human growth hormone (HGH), and mineral oil (MM). The chemical messengers that give rise to these effects are known as transcription factors.

At the point where a hair follicle becomes an active hair follicle, the existing layers become thickened and begin to form a protective sheath around the base of the follicle, protecting it from outside elements, and allowing nutrients to reach the root sheath. New hair grows out from these new layers of cells forming a cortex. As hair grows it moves up the hair shaft towards the scalp. As it moves up the shaft, new cells push further up into the scalp until eventually they cover the root sheath.

Since new hair cannot penetrate the thickness of the cortex, the hair shaft gradually decreases in size until eventually it reaches the surface of the skin called the epidermis, or middle layer of skin. From this point on, the hair stops growing but the process of keratinization continues. Keratinized cells in the epidermis continue to grow in response to signals sent by the nerves to the hair follicles and by the epidermis to the immune system. The immune system sends white blood cells (PMS) to the hair follicles to fight off infections that could cause inflammation or other health issues related to unhealthy hair.

The hair follicles themselves are programmed to divide and produce melanin - a pigment - in response to the stimulus of light. However, as people get older, the body's ability to produce melanin decreases. In response to this weakening of hair stem cells, the melanocytes start to produce less melanin. This less melanin production enables the hair to appear dull and lifeless.

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